Here are the injuries we're monitoring after Sunday's Week 8 action.
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Nick Fairley, DT, Detroit Lions (knee): The Lions beat the Falcons very early Sunday, but they may have paid a high price on their way to a 6-2 mark and first place in the NFC North. Fairley was carted off the field with a right leg injury following a collision with teammate Ndamukong Suh, and according to head coach Jim Caldwell, the prognosis is not good.
"I'm not quite certain where he is right now," Caldwell said. "But obviously, when you're carried off the field, it's not the greatest news. We'll see what the doctors say about him."
There will be more conclusive news on Fairley early this week, but TheMMQB's Peter King is hearing the injury is "bad," which would be really unfortunate -- Fairley is in the last year of a rookie contract that gives him a base salary of $1,723,500, and he's playing very well this season after going through some concentration lapses earlier in his career.
Lamarr Houston, DE, Chicago Bears (knee): Houston went down after celebrating a sack in Chicago's blowout loss to the Patriots, and, per multiple reports, he suffered a season-ending torn ACL. Houston has struggled to get sacks since the Bears signed him to a five-year, $35 million contract in March.
Athletes Who Injured Themselves While Celebrating
The Bears' defensive end injured himself while celebrating a sack against Patriots backup QB Jimmy Garoppolo with 3:24 remaining in the game and Chicago down 48-23 on Oct. 26, 2014. He jumped as part of his celebration and landed awkwardly, appearing to injure his leg. Houston later had to be carted off the field to the locker room.
The Lions' linebacker tore his ACL while celebrating a sack in the team's victory over the Green Bay Packers on Sept. 21, 2014.
Georgia's top receiver tore his ACL after jumping to celebrate teammate Todd Gurley's 75-yard touchdown run on Aug. 31, 2013.
Maurides Roque Junior
The Brazilian soccer player scored his first career goal, began somersaulting, and left on a stretcher with a knee sprain on July 10, 2013.
A perfect game by Matt Cain (right) on June 13, 2012 led to an imperfect celebration by Huff (2nd from left), who sprained his knee leaping over the dugout rail and landed on the DL.
The Mets' relief pitcher (inset) went on the DL after injuring his hamstring while celebrating teammate Johan Santana's no-hitter on June 1, 2012.
Levet withdrew from the British Open after being ruled out for six weeks with a broken shin. He broke the bone when jumping into a lake to celebrate his victory at the French Open on July 3, 2011.
AC Milan's striker strained his arm with an exuberant fist pump following a bicycle kick goal on Nov. 20, 2010.
The Marlins' outfielder tore the meniscus in his left knee while smashing teammate Wes Helms with pie after his walk-off single on July 25, 2010.
The Orioles' outfielder pulled a hamstring during his home trot on June 30, 2010 and was forced to spend 15 days on the DL.
The Angels' first baseman broke his leg stomping on home plate after hitting a walk-off grand slam on May 29, 2010.
The Washington Redskins' cornerback, already sidelined with a sprained knee, suffered back spasms while jumping up and down in celebration on Dec. 6, 2009.
The Mariners' catcher sprained his ankle while celebrating teammate Ichiro Suzuki's walk-off home run on Sept 18, 2009.
The Cubs' starting pitcher landed on the 15-day DL after breaking his big right toe when his foot got caught in the dugout railing while trying to run out with his teammates to celebrate a win over the Brewers on July 3, 2009.
Vonn underwent surgery after cutting into the tendon of her right thumb with the top of a champagne bottle while celebrating her downhill victory in the World Championships on Feb. 9, 2009.
The Florida State safety suffered a career-ending knee injury while celebrating an interception against Boston College on Nov. 15, 2008.
The Real Salt Lake footballer injured his ankle after a celebratory backflip for a goal that was later ruled offside on Sept. 6, 2008.
The Rockies' outfielder was placed on the 15-day DL with a strained left calf, which he sustained during the team's victory celebration in its season opener on April 4, 2005
The newlywed Swiss-Portuguese soccer player climbed a fence while celebrating his teammate's goal, got his wedding ring caught, and ripped off part of his finger -- which doctors could not re-attach -- on Dec. 5, 2004. Adding insult to injury, Diogo was penalized with a yellow card.
The Cardinals' kicker got so excited about making a 42-yard field goal in the first quarter that he jumped in the air, landed awkwardly on his leg, and tore his ACL, ending his season during a 17-13 loss to the Giants on Dec. 15, 2001.
The Redskins' quarterback sprained his neck after headbutting the end zone wall following his one-yard touchdown run against the Giants on Nov. 23, 1997.
Brian Quick, WR, St. Louis Rams (shoulder): Quick exited Sunday's loss to the Chiefs with a shoulder injury and, according to ESPN's Adam Schefter, the injury will sideline him the rest of the season. The third-year wideout is second on the team in targets (39). St. Louis will turn to tight end Jared Cook and wideout Kenny Britt to fill the void.
Jon Beason, LB, New York Giants (toe): The man in the middle of the Giants defense will require toe surgery that'll knock him out for the rest of the season. Beason's in the first year of a three-year deal signed this spring.
Jake Long, OT, St. Louis Rams (knee): According to Pro Football Talk, the Rams fear that the injury Long suffered against the Chiefs in a 34-7 loss could be season-ending. If that's the case, head coach Jeff Fisher might be forced to move rookie Greg Robinson to the left tackle spot, when Robinson has struggled to get on the field at times from a performance perspective. If it's a torn right ACL, it's the same one Long tore last season, and at age 29, there has to be concern about his NFL future.
Doug Martin, RB, Tampa Bay Buccaneers (ankle): Martin's injury history is unfortunately long and varied, and he managed just 27 yards on 10 carries before he left the Bucs' loss to Minnesota with an ankle injury in the third quarter. Martin has played in just five games this season, and his yards per carry has dropped from 4.6 to 3.6 to 2.9 in the last three seasons. Once thought to be Tampa Bay's sparkplug, Martin still has the talent, but he's having trouble holding up physically.